APA (7th ed.) Citation

Velázquez, R., Hernández, H., & Preza, E. A Portable Piezoelectric Tactile Terminal for Braille Readers. Wiley.

Chicago Style (17th ed.) Citation

Velázquez, Ramiro, Hermes Hernández, and Enrique Preza. A Portable Piezoelectric Tactile Terminal for Braille Readers. Wiley.

MLA (9th ed.) Citation

Velázquez, Ramiro, et al. A Portable Piezoelectric Tactile Terminal for Braille Readers. Wiley.

Warning: These citations may not always be 100% accurate.